Carving tool



Apr. 10, 1923. 1,451,128 I K. THULANDER I CARVING TOOL Filed Oct. 29,1920 Patented Apr. 10, 1923.

UNITED" AT S"- HEM30FPM;

cAavI ve "11001,;

Application filed October 29, 1920. Serial No. 420,354.

To all whom it may concern: i i 'Be it known that 'I, KONSTANTINE THU-LANDER,; a subject of Sweden, residing -at Rockford, in the county,ofWinnebago and 5 State'of Illinois, have invented, certain new anduseful Improvementsjin Carving Tools, of which the fOllOWiIlg' is aspecification.

This invention pertaining in general. to"

carving, tools, has more particular reference 1 to bits, suchas' areused in carving machines of that class in which abit or blade revolv--ing ata highspeed is controlled in .the carv-- ing operation by a masterpattern;

These bits require frequent sharpening;

1 and the bits heretofore employed have been unsatisfactory inthat theirconstruction permits of resharpening fonly to a small extent, thusrendering the cutting blades relatively short-lived.

The primary object of the present invention is to provide a bit forcarving machines constructed in such novel manner as to materiallyincrease the longevity of a tool of this kind.

I have also aimed to provide a carving tool of the character describedincluding a cutting blade and a shank adjustably associated in a novelmanner, whereby the blade may be adjusted relatively to the axis of theshank for the purpose of properly resetting or aligning the blade withrespect to the shank after sharpening.

Another object is to provide a cutting blade and a shank constructed tointerfit and be clamped together in such novel manner that the torsionalthrust will be very effectively carried and so that the blade will bevery securely locked in connection with the shank.

Other objects and attendant advantages will be appreciated by thosefamiliar with this art as the invention becomes better understood byreference to the following description when considered in connectionwith the accompanying drawing, in which Figure 1 is a face view of acarving tool embodying my invention;

Fig. 2, a side view of the tool;

Fig. 3, an edge view of the clamping nut;

Figs. 4 and 5, side and end views of the shank;

Fig. 6, an end view of the blade removed from the shank; and

Fig. 7 a sectional view taken on the line 7-7 of Fig. 2.

,allel peripheral faces. l5. That portion-161 KO STANTINE THULANDER, ornooxronn, inLriroIsnssre'no qio- T ;L6ROCKFORD,ILLINoIgf-n'CORPORATIONQ13 ILLINOIS.

invention contemplates the vprov-isioi 1 l:

of a carving tool consisting, generally stated, I of three parts, 'viz:a: shank 8, a, cutting stock might be of any suitable; shapeto fit in achuck,- spindle socket or other, driving blade 9, and a clamping nut'10.;5The shank means, and is shaped -to'profvide;a head 11 defined by;a shoulder 12,-"a fiatface-13, a

curved peripheral portion 14 and flat-par;

of the shankj contiguous tothe shoulderh12 a The cutting-blade might bei any of various shapes, depending -;on the particular is .threadedforengagement, fthe clamping; nut 10. v

character ofv thework at hand. Theparticu lar blade shown is known asa'roughing cut-1 i ter and has an inclined cutting edge 17 ex-" tendingsubstantially from the base 18 to the point or apex 19. The base 18 ofthe blade has an elongated opening or slot 20 and is shaped to provideraised edges 'or walls 21 parallel with the elongation of the slot andof an inside dimension corresponding to the distance between the faces15 on the shank head. 1 I

The foregoing parts may be assembled in the manner shown in Fig. 1, withthe shank passin through the slot 20, the head 11 disposed v etween thewalls 21 and the nut 10 turned a) rigidly clamp the blade between thehead 11 and the nut. I In assembling the tool, the blade will be set sothat the point 19 is in alignment with the longitudinal axis of theshank and locked in this position.

After the cutting edge has been sharpened,

it will be necessary toreset the blade to. reali n the point, this beingdone by loosening t e nut 10 and shifting the blade on the shank in thelane of the slot, and tighten- 1n tio ned. It will be observed that thesides 21 of the blade embrace and engage the Hat sides 15 of'the shankhead, thus securely holding the blade against any rotative: movementwith respect to the shank and constituting a very substantial andeffective union between these parts, whereby the torsional strain willbe efficiently carried. It should be manifest that the parts employed inthis tool are capable of economical production and will give greaterservice than those tools 95. I the nut w en the blade is properly posiofa similar character in which it is necesa clear undenstandin-g; of the:ob i eets grefi aced abeve; and' While I have i'll us'tratedamddescribed but at single Working embodiment,-

it should be, understood that va riousichanges might be made" indetaiIsqf censtrlictibn Without departingfi'ointhe spiiit a ndscope of theinvention as expressed in the append ed claims, in Which- I claim: a 1.A bit for carving machines comprising ashank having-ca head With fi-afisides, a

Gaming: blade the base of which has a-s1t t and i s shaped to embracesaid flat sides, and

a n t. threadingly engaging"the shanl'z fer 1 cl ampiirgt-l ie bi-adeto' the headi. I

carving-tool of t l ie chranacter decepti tb 6f the shankrand shaped: toreceiveshank, and means fer" elampingthe 'bladeto the shank in anyadjusted position.

3}." A carving met the character 'lhaving a base slotted fo'r: the reom-pri sin g ar shank, a carving blade b the torsienalithwust, andithreaded on the. shank; fen clamping the blafla in any adjustediposition.

4.. A carving ,tool ,oi; the chanacten plea sc'ribed comprisingallsheil'ltta carving Blade having 'aqbase "p'rdi ided wit'h opposedthrust fiaces; associated with complemental faces on the shank and beingadjustable transversely to thezshamwktinzthev-plame of said faces, and

a nut threaded on the shank for clamping the blade thereto ri nfianyadjusted?pesitien y 5. A carvingtoo-1 o=f the hammer d base slmtteda Ifor the reception I 0 1% the sh nk only; saith base having: side waagainst said sides o f: i the 1163i for claim-pi ng the blade t0; saidhead;

fer thml s't means A carvi ngteoli efi the eharacte v lie in'g bladehaving; a baseslotted fer the recepti onf of the shank ans-havingthrust' KONSTANTINE THUIQANDER?

